Question : Directions: Select the correct combination of mathematical signs to replace * signs and to balance the following equation. (9 * 8 * 7) * 13 * 5
Option 1: ×, =, ÷, −
Option 2: ×, −, ÷, =
Option 3: ÷, −, =, ×
Option 4: −, ÷, ×, =
Correct Answer: ×, −, ÷, =
Solution : Given: (9 * 8 * 7) * 13 * 5
Let's check the options – First option: ×, =, ÷, − 9 × 8 = 7 ÷ 13 – 5 9 × 8 = 7 ÷ 13 – 5 72 = 0.53 – 5 72 = – 4.47 L.H.S. ≠ R.H.S. Second option: ×, −, ÷, = (9 × 8 – 7) ÷ 13 = 5 L.H.S. = (9 × 8 – 7) ÷ 13 = (72 – 7) ÷ 13 = 65 ÷ 13 = 5 Third option: ÷, −, =, × (9 ÷ 8 – 7) = 13 × 5 L.H.S. = (9 ÷ 8 – 7) = (1.125 – 7) = – 5.875 R.H.S. = 13 × 5 = 65 – 5.875 ≠ 65 L.H.S. ≠ R.H.S. Fourth option: −, ÷, ×, = (9 – 8 ÷ 7) × 13 = 5 L.H.S. = (9 – 8 ÷ 7) × 13 = (9 – 1.143) × 13 = 7.857 × 13 = 102.141 ≠ 5 L.H.S. ≠ R.H.S.
So, only the second option satisfies the equation. Hence, the second option is correct.
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Question : Directions: Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation. 42 * 7 * 3 * 2 * 13 * 7
Option 1: ÷, ×, −, =, ×
Option 2: +, =, ÷, ×, +
Option 3: ÷, ×, =, +, +
Option 4: ÷, ×, +, =, +
Question : Directions: Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation. (44 * 3) * 9 * 89 * (174 * 29) * 58
Option 1: ÷, −, =, −, ×, −
Option 2: +, ÷, +, =, −, ×
Option 3: ×, +, =, +, ×, ÷
Option 4: ×, +, =, −, ÷, +
Question : Directions: Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation. 54 * 6 * 72 * 8 * 3 * 15
Option 1: ÷, +, ÷, −, =
Option 2: ÷, −, −, +, =
Option 3: +, ÷, ×, +, =
Option 4: ×, −, −, +, =
Question : Directions: Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation. (626 * 2) * (11 * 9) * 69 * 240 * 103
Option 1: ÷, +, ×, =, +, +
Option 2: +, ×, =, ÷, +, −
Option 3: ÷, −, ×, =, −, ×
Option 4: +, ×, =, −, ÷, +
Question : Directions: Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation. (130 * 4) * 21 * 485 * (28 * 2)
Option 1: +, −, =, −, ×
Option 2: ÷, +, =, −, ×
Option 3: ×, −, =, −, ÷
Option 4: ×, −, =, +, ÷
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